Kiln

Kiln is a native macOS workstation, written in Swift and SwiftUI, where an AI agent and a set of professional tools share one foundation. You converse with a model in one window, and the same agent can read and edit code, take a binary apart, train a small model, browse the web, drive a simulator or process media, with every consequential step passing through approvals and a tamper-evident audit record.

Kiln is early-stage software. It has real, verified capabilities and substantial unfinished areas. It does not replace Xcode, Ghidra or a production model platform. This README describes what is built; anything planned is under Roadmap and is not claimed as shipped.

Contents

What Kiln is · Screenshots · Activities · Agent and MCP integration · Providers · Safety model · Install · Build from source · Documentation · Roadmap · Contributing · License

What Kiln is

• One window, one conversation. Chat opens in the center; Browser, Maps, Devices, Media and News can appear beside it on wider windows. Develop and Analyze keep a larger workspace with a compact chat panel. The sidebar provides projects, conversations and scheduled tasks; the toolbar and Work menu open activities.
• Agents with real tools. More than 200 tools (file, shell, Git, development, reverse-engineering, Model Lab, browser, device, media, maps, news, mail, messages, calendar, notes, drives, research, GitHub and opt-in computer use) run through shared services, policy gates and approvals. To save context, a run starts with the basics and the agent loads the rest by asking (kiln_tool_search).
• Bring your models. Apple Foundation Models, MLX, Ollama (local and cloud), NVIDIA NIM, OpenRouter and any OpenAI-compatible endpoint, with keys in the macOS Keychain.
• Supervised by design. Ask, Auto and Bypass approval modes, a behavior monitor, tripwires and a hash-chained audit log you can verify from the app.
• Take it with you. Talk to the agent, hear replies, and approve tool calls from an iPhone or Apple Watch companion (built from source) over an encrypted link.
• Open. Specifications, implementation and tests are in this repository.

Screenshots

Activities

Activities have registry-defined shortcuts (⌘1 to ⌘9, then ⌘0), and the registry in Core/Registry/ is the single place an activity is declared.

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